A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5925-01-287-5629
NSN 5990-00-589-5045
NSN 5895-01-181-5471
NSN 5950-01-380-3147
NSN 5999-01-429-4077
NSN 2925-01-093-5479
NSN 6320-01-228-2380
NSN 6110-01-617-1416
NSN 6240-01-633-9357
NSN 5950-01-034-9333
NSN 5920-01-589-2408
NSN 6650-01-048-6757